Hybrid Security Architect: Quantum & Crypto

Remote Worker LTD.; Greater London; Hybrid; GBP 90,000 - 130,000; Full time

Benefits offered by this job

Private healthcare

25 days annual leave

Pension plan

Bonus scheme

Share ownership

Cycle to work

Job summary

PA Consulting is seeking a Senior Security Architect to drive cryptography and PQC readiness for government and commercial clients. You will shape cryptographic strategy, advise on PKI, and oversee migration planning within diverse critical infrastructure projects.

You will join a global team of experts, contributing to thought leadership and secure digital transformations while supporting bids, client workshops, and technical certifications. Hybrid office/client-site work is expected.

Qualifications

• Security architecture experience required or strong background in designing secure systems.
• Applied cryptography, PKI, key management or related cybersecurity experience.
• Understanding of public key cryptography, certificates and trust services.
• Experience producing assessments, roadmaps and technical recommendations.
• Strong consulting, communication and stakeholder engagement skills.
• Ability to communicate complex technical topics to senior business and technology stakeholders.

Responsibilities

• Security architecture and secure-by-design activities.
• Cryptography and PKI advisory work.
• PQC readiness assessments and migration planning.
• Cryptographic discovery and inventory activities.
• Cloud, enterprise and technology transformation programmes.
• Client workshops and stakeholder engagement.
• Development of PQC propositions, methods and thought leadership.
• Support for bids and business development activity.

Skills

Security architecture

Cryptography & PKI

Public key cryptography

Roadmaps & assessments

Consulting & communication

Stakeholder engagement

Education

CISSP

SABSA

CCSP

Cloud security certifications

Security architecture certifications

Cryptography-related certifications

Job description

PA Consulting is seeking a Senior Security Architect to drive cryptography and PQC readiness for government and commercial clients. You will shape cryptographic strategy, advise on PKI, and oversee migration planning within diverse critical infrastructure projects.

You will join a global team of experts, contributing to thought leadership and secure digital transformations while supporting bids, client workshops, and technical certifications. Hybrid office/client-site work is expected.